# TP_WaitAllBusy

## C Specification

  `#include <nitro/spi.h>`

      void TP_WaitAllBusy( void );

## Description

This function waits until processing is finished for the touch panel request instructions that have been sent to ARM7.

## Arguments

None

## Return Values

None

## Notes

This function uses an interrupt to wait for a termination acknowledgement from ARM7. If it is called while FIFO receive interrupts from ARM7 are prohibited, it may not be possible to return from wait.

## See Also

`TP_RequestAutoSamplingStart`, `TP_RequestAutoSamplingStop`, `TP_RequestSetStability`, `TP_CheckError`

## Revision History

04/16/2004 Initial version